Exercise 10
1 Subtract the following-
a). -7-5
b). 18-(-21)
c). (-27)-(-33)
d). -89-(+11)
e). 3/7-2)7
f). 9/20-3/20
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Answered by
2
Answer:
1) -7-5
= -7+5
=-12
2)18-(-21)
=18+-21
=39
3)(-27) - (-33)
=60
4)-89-(+11)
=78
5)3x1, 2x1
7x1. 7x1
=3/7-2/7
=1/7
6)9/20-3/20
= 9x1 , 3x1
20x1 20x1
= 9/20-3/20
= 6/20
= 3/10
Answered by
0
Answer:
Step-by-step explanation:
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